Electric signaling mechanism



Jan. 17, 1939.

A. G. ROZYSKIE ELECTRIC S IGNALING MECHANIS M Filed July 15, 1937 .5. 5fED271515 Patented Jan. 17, 1939 2,144,124

UNITED STATES i ATENT OFFICE ELECTRIC SIGNALING MECHANISM Albert GeorgeRozyskie, Mobile, Ala.

Application July 15, 1937, Serial No. 153,820

3 Claims. (Cl. 20052) This invention relates to electric signalmechapivot pin 20 and has one end fixed to the rear wall nism designedto be applied to a machine to indiof said housing, the other end beingbent around cate when a moving part thereof has become disthe rear sideof the plate l9, to swing the plate placed from movement in a certaindirection bel9 outwardly against the tension of spring l8.

yond a predetermined limit. A pair of electric contacts 23 and 24 aresuit- 5 The main object of the invention is to provide ably secured toan insulated block 24' on the rear a device which will automaticallyoperate a warnwall of the housing 2|. These contacts extend ing signalor signals upon displacement of a movon opposite sides of the plate ISin the path of ing unit beyond a predetermined limit. movement of thearms 25 and 26, respectively, of

10 While the invention is applicable to any unit a pole plate 27,suitably secured to and insulated 10 which must have limited movement inany direcfrom the plate l9. The pole plate 21 is electrically tion, itis most sutable for use with endless units, connected by a wire 28 toone of the mains 29 such as belts, chains, wires, etc; and, is particuofa source of electric energy. The contact 24 larly applicable to feltunits on paper or board is connected by a wire 30 to a signal lamp 3|,conmaking machines. For convenience, therefore, nected through wire 32to the ground or return the invention will be described herein as withline 33. The contact 23 is connected by wire 34 Fourdrinier wires, orsimilar wires of paper mato an audible signal 35 connected by Wire 38 tochines. the ground wire 33.

Other objects of the invention will become ap- In the setting up of thisapparatus the contact parent as the detailed description thereofproplate l4 may be adjusted about its pivot I? so as 20 ceeds. tocontact with the edge of the felt 5 in such man- In the drawing: nerthat the coil spring 22 maintains the arms Figure 1 is a perspectiveview of the signal and 26 of the pole plate 21 normally spaced mechanismas applied to the frame of a paper from the contacts 23 and 24 againstthe tension 5 machine; of the spring l8. It will be evident that whenthe 25 Figure 2 is: a central vertical section through a felt 5 is movedlaterally out of its normal position bearing element of said mechanism;and against the plate M, the lever I will be swung Figure 3 is a diagramillustrating the invention about its pivot 8 so as to move the arms 25and as applied to a number of machines. 26 against the contacts 23 and24, to operate the 30 As shown particularly in Figure 1 of thedrawvisual and audible signals and 3|, respectively. 30 ing, the circuitclosing part of the mechanism The audible alarm 35 may be in the natureof a forming the present invention is supported on a buzzer, bell, horn,siren or any other electrically horizontal runner 4, forming part of theframe operated alarm, capable of attracting the attenwork of a machinein which the felt 5 is supported tion of the operator, regardless of thesounds re- 35 on rolls 6 (only one of which is shown), for movesultingfrom the operation of the machine itself. 35 ment in a directionsubstantially parallel to the This audible signal may be located in anydesired runner 4. position, preferably on the tending side of the Thecircuit closer part of the mechainsm commachine in which it is used. Thevisual signal prises a lever l pivoted between its ends by a may be acolored or white light placed in such pivot 8 which is mounted to rotatein ball bearlocation as to be readily seen by the machine 40 ings 9 andI0, enclosed in a casing ll secured by operator. bolts l2 to a flange l3of the runner 4. A con- Any number of these circuit closing mechatactplate I4 which is semi-elliptical in cross secnisms: may be used on onemachine to control a tion, is provided at the center of its concave facecorresponding number of visual signals, along with a pair of parallellugs l5 and I6 straddling with a single audible signal. The diagrammatic45 and pivoted to one end of the lever l by a pivot layout for sucharrangement is illustrated in bolt I! extending through registeringapertures Figure 3, wherein the numerals 36, 31, 38 and 39 in the lugsl5 and I6 and the aforesaid end of designate the mechanical combinationof elethe lever l. ments shown in Figure l of the drawing. The

The other end of the lever 1 is connected to a visual signals 36, 31,38' and 39' are connected 50 tension spring l8 having its other endconnected by suitable wiring for operation by the respecto a plate l9,the lower end of which is fixed to a tive circuit closing mechanisms 35,31, 38 and 39. pivot pin 20 journaled at its opposite ends in the Theaudible signal 35 is shown in Figure 3 as opposite sides of a housing 21suitably secured to connected for operation simultaneously with any 65runner 4. A coil spring 22 is coiled around the or all of the visualsignals. The operation of this multiple signaling system will beapparent from inspection of the drawing.

Although I have illustrated and described only one form of the inventionI am aware of the fact that modifications can be made therein by anyperson skilled in the art without departing from the scope of theinvention as expressed in the claims.

What I claim is:

1. An electric switch for a machine including an endless felt and meansfor moving the same rectilinearly, said switch comprising: a supportadapted tobe fixed adjacent one edge of said felt; a lever pivotedbetween its ends on said support; a cam pivoted on one end of said leverand having a cam surface adapted to be moved by the adjustment of saidcam about its pivot axis toward and from said edge; a circuit closerincluding a plate pivoted at one end on said support, yielding meansconnected to said support and plate for moving the free end of saidplate away from said edge, and a tension spring connecting the otherends of said lever and plate to maintain the cam surface of the camplate in yielding contact with said edge.

2. An electric switch for a machine including an endless felt and meansfor moving the same rectilinearly, said switch comprising: a supportadapted to be fixed adjacent one edge of said felt; a lever pivotedbetween its ends on said support; a cam pivoted on one end of said leverand having a cam surface adapted to be moved by the adjustment of saidcam about its pivot axis toward and from said edge; a circuit closerincluding a plate pivoted at one end on said support; and meansconnected to said support, plate and lever for holding said cam with itscam surface in yielding contact with said edge.

3. An electric switch for a machine including an endless felt and meansfor moving the same rectilinearly, said switch comprising: a supportadapted to be fixed adjacent one edge of said felt; a lever pivotedbetween its ends on said support; a cam pivoted on one end of said leverand having a cam surface adapted to be moved by the adjustment of saidcam about its pivot axis toward and from said edge; and a circuit closerincluding means connected to said lever for holding said cam with itssurface in yielding. contact, with said edge.

ALBERT GEORGE ROZYSKIE.

